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Title: ANNUAL WEED CONTROL RESEARCH REPORT, 1995

Author
item HART, STEPHEN - UNIV OF ILLINOIS
item MAXWELL, DOUGLAS - UNIV OF ILLINOIS
item WAX, LOYD
item SIMMONS, FRED - UNIV OF ILLINOIS
item MCGLAMERY, MARSHAL - UNIV OF ILLINOIS
item STOLLER, EDWARD
item KNAKE, ELLERY - UNIV OF ILLINOIS

Submitted to: Annual Weed Control Research Reports
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 2/6/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary: This report is a summary of herbicide evaluation studies conducted cooperatively in Illinois by University of Illinois and USDA-Agricultural Research Service personnel. Many new herbicides and additives have been investigated with the goal of developing new and improved systems of weed management that are effective and environmentally sound. The objective of this report is to inform our colleagues at other universities and research locations, industry cooperators, and other interested parties of the results of our 1995 studies as soon as possible. This will allow comparisons across the region and facilitate planning for additional studies in 1996 to fine-tune the result found in previous years. These findings are helpful to ARS, State and Industry scientists in planning for future studies and in designing improved weed management systems. They also provide essential data to support label registration packages for new herbicide uses, and are useful to extension personnel in preparing guidelines for weed management.

Technical Abstract: Numerous herbicides and additives were evaluated for weed control and phytotoxicity to crops in Illinois under a variety of soils and environmental conditions. Single and combination treatments were compared with standard chemical and non-chemical means of control. Emphasis was placed on the use of postemergence application and adjuvants that improve herbicide absorption into the plant leaves and provide more consistent control with the same or reduced rates of application. Many treatments were discovered in corn and soybeans that provided improved control of several weed species with adequate crop safety. Comparisons of adjuvants showed differential results with various herbicides depending on the class of adjuvant used. Systems for no-tillage were also emphasized, and a number of treatments were found to provide excellent, broad spectrum control with little or no crop injury. Detailed studies on time of application of soil applied herbicides in no-tillage for grass control showed clear differences among the chloroacetamide herbicides available for evaluation. These results provide rapid feedback to cooperators from the public and private sector, assist in the planning of improved studies in 1996, provide essential data to support label registration packages, and are useful to extension personnel in preparing guidelines for weed management.